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AssigneeIslet Technology, Inc.
InventorsStephen E. Walsh, Monte R. Canfield, Nancy J. Drake
Estimating the term…
A method and system for the effective and consistent encapsulation of viable (i.e., living or physiologically active) biological material (preferably, pancreatic islets also known as islets of Langerhans) with a polymeric material (preferably, a biocompatible semipermeable alginate) to form a gelled capsule, which preferably can be transplanted into genetically dissimilar hosts. The method includes an electrostatic mixing process for producing encapsulated cell clusters with at least two polymeric coatings, and the system includes an improved spinning disk atomizer. In an embodiment, biological material is encapsulated in a first alginate layer, the resultant capsules are suspended in a liquid carrier medium such as a saline solution, an electrostatic charge is applied to the carrier medium which is then introduced into an alginate solution, and the resultant suspension is atomized and gelled to form a second alginate layer.
A system for encapsulating cell clusters of biological material comprising:
The system of claim 11, wherein the means for atomizing and gelling the second alginate suspension comprises a spinning disk encapsulation apparatus having a center cup into which the second alginate suspension is introduced and an outer collection chamber containing a gelling solution.
A method for encapsulating biological material, the method comprising:
A method of encapsulating cell clusters of biological material comprising:
Dependencies are inferred from the claim text.